YANBU

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 115.7000000000000028421709430404007434844970703125,
    "points_in_zone": 25,
    "first_point": {
        "ts": "2026-09-06T22:30:40+00:00",
        "lat": 34.70781670000000218578861677087843418121337890625,
        "lon": 33.3204683000000017045749700628221035003662109375
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    "last_point": {
        "ts": "2026-09-07T00:26:19+00:00",
        "lat": 34.70781170000000059872036217711865901947021484375,
        "lon": 33.32045670000000114896465674974024295806884765625
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}

{
    "radius_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 115.7000000000000028421709430404007434844970703125,
    "points": 25,
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        "lon": 33.32046852399999892213600105606019496917724609375
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        "min_lat": 34.7077900000000028057911549694836139678955078125,
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        "max_lat": 34.7078350000000028785507311113178730010986328125,
        "max_lon": 33.32048499999999791043592267669737339019775390625
    },
    "zone_id": "discovered_039"
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 294,
    "points_in_zone": 42,
    "first_point": {
        "ts": "2026-09-06T17:12:09+00:00",
        "lat": 34.707836700000001428634277544915676116943359375,
        "lon": 33.32045500000000259888111031614243984222412109375
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    "last_point": {
        "ts": "2026-09-06T22:06:09+00:00",
        "lat": 34.7077866999999997688064468093216419219970703125,
        "lon": 33.3204666999999972176738083362579345703125
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}

{
    "radius_m": 3.29999999999999982236431605997495353221893310546875,
    "duration_minutes": 294,
    "points": 42,
    "centroid": {
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        "lon": 33.320467538095243753559770993888378143310546875
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    "bbox": {
        "min_lat": 34.70778500000000121872290037572383880615234375,
        "min_lon": 33.32043999999999783767634653486311435699462890625,
        "max_lat": 34.707836700000001428634277544915676116943359375,
        "max_lon": 33.32049330000000253448888543061912059783935546875
    },
    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005092,
        "imo": 9654555,
        "name": "ARDMORE ENTERPRISE",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 6.0999999999999996447286321199499070644378662109375,
    "avg_distance_m": 306,
    "distance_consistency_m": 38.5,
    "duration_minutes": 389.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 23349,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-09-06T17:54:09+00:00",
        "end": "2026-09-07T00:23:18+00:00"
    },
    "points_count": {
        "vessel_a": 63,
        "vessel_b": 63
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 92,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 6m, avg 306m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 389 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b138m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and ARDMORE ENTERPRISE) maintained close proximity (min 6m, avg 306m) for 389 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005092,
        "imo": 9654555,
        "name": "ARDMORE ENTERPRISE",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 6.0999999999999996447286321199499070644378662109375,
    "avg_distance_m": 305.5,
    "distance_consistency_m": 41.2000000000000028421709430404007434844970703125,
    "duration_minutes": 380.1000000000000227373675443232059478759765625,
    "overlap_duration_s": 22808,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
        }
    },
    "time_window": {
        "start": "2026-09-06T16:57:09+00:00",
        "end": "2026-09-06T23:17:17+00:00"
    },
    "points_count": {
        "vessel_a": 55,
        "vessel_b": 55
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 92,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 6m, avg 306m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 380 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b141m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and ARDMORE ENTERPRISE) maintained close proximity (min 6m, avg 306m) for 380 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 363,
    "points_in_zone": 52,
    "first_point": {
        "ts": "2026-09-06T16:03:09+00:00",
        "lat": 34.7076899999999994861354934982955455780029296875,
        "lon": 33.3205150000000003274180926382541656494140625
    },
    "last_point": {
        "ts": "2026-09-06T22:06:09+00:00",
        "lat": 34.7077866999999997688064468093216419219970703125,
        "lon": 33.3204666999999972176738083362579345703125
    }
}

{
    "radius_m": 16.699999999999999289457264239899814128875732421875,
    "duration_minutes": 363,
    "points": 52,
    "centroid": {
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    "bbox": {
        "min_lat": 34.70765329999999693200152250938117504119873046875,
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    "zone_id": "discovered_039"
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 387,
    "points_in_zone": 56,
    "first_point": {
        "ts": "2026-09-06T15:39:10+00:00",
        "lat": 34.7076899999999994861354934982955455780029296875,
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        "ts": "2026-09-06T22:06:09+00:00",
        "lat": 34.7077866999999997688064468093216419219970703125,
        "lon": 33.3204666999999972176738083362579345703125
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}

{
    "radius_m": 15.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 387,
    "points": 56,
    "centroid": {
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        "lon": 33.32047734999999732963260612450540065765380859375
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    "bbox": {
        "min_lat": 34.70765329999999693200152250938117504119873046875,
        "min_lon": 33.32043999999999783767634653486311435699462890625,
        "max_lat": 34.707836700000001428634277544915676116943359375,
        "max_lon": 33.32054169999999970741555443964898586273193359375
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    "zone_id": "discovered_039"
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005092,
        "imo": 9654555,
        "name": "ARDMORE ENTERPRISE",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 306.6000000000000227373675443232059478759765625,
    "avg_distance_m": 311.69999999999998863131622783839702606201171875,
    "distance_consistency_m": 2.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 378,
    "overlap_duration_s": 22680,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.05000000000000000277555756156289135105907917022705078125,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.200000000000000011102230246251565404236316680908203125
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    },
    "time_window": {
        "start": "2026-09-06T15:39:10+00:00",
        "end": "2026-09-06T21:57:10+00:00"
    },
    "points_count": {
        "vessel_a": 55,
        "vessel_b": 55
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 307m, avg 312m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 378 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and ARDMORE ENTERPRISE) maintained close proximity (min 307m, avg 312m) for 378 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005092,
        "imo": 9654555,
        "name": "ARDMORE ENTERPRISE",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 306.6000000000000227373675443232059478759765625,
    "avg_distance_m": 312.1000000000000227373675443232059478759765625,
    "distance_consistency_m": 3.100000000000000088817841970012523233890533447265625,
    "duration_minutes": 378,
    "overlap_duration_s": 22678,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.0200000000000000004163336342344337026588618755340576171875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.0200000000000000004163336342344337026588618755340576171875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
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    },
    "time_window": {
        "start": "2026-09-06T14:36:10+00:00",
        "end": "2026-09-06T20:54:08+00:00"
    },
    "points_count": {
        "vessel_a": 57,
        "vessel_b": 57
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 307m, avg 312m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 378 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and ARDMORE ENTERPRISE) maintained close proximity (min 307m, avg 312m) for 378 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 387,
    "points_in_zone": 58,
    "first_point": {
        "ts": "2026-09-06T14:27:09+00:00",
        "lat": 34.70770999999999872898115427233278751373291015625,
        "lon": 33.32053330000000102018020697869360446929931640625
    },
    "last_point": {
        "ts": "2026-09-06T20:54:08+00:00",
        "lat": 34.70778500000000121872290037572383880615234375,
        "lon": 33.3204716999999988047420629300177097320556640625
    }
}

{
    "radius_m": 14.9000000000000003552713678800500929355621337890625,
    "duration_minutes": 387,
    "points": 58,
    "centroid": {
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    "zone_id": "discovered_039"
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{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 538005092,
        "imo": 9654555,
        "name": "ARDMORE ENTERPRISE",
        "flag": "MARSHALL ISLANDS"
    },
    "min_distance_m": 307.5,
    "avg_distance_m": 312.30000000000001136868377216160297393798828125,
    "distance_consistency_m": 2.899999999999999911182158029987476766109466552734375,
    "duration_minutes": 378,
    "overlap_duration_s": 22682,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0.0299999999999999988897769753748434595763683319091796875,
    "speed_b_std": 0.040000000000000000832667268468867405317723751068115234375,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0.0299999999999999988897769753748434595763683319091796875,
            "max_sog": 0.1000000000000000055511151231257827021181583404541015625
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    },
    "time_window": {
        "start": "2026-09-06T13:45:08+00:00",
        "end": "2026-09-06T20:03:10+00:00"
    },
    "points_count": {
        "vessel_a": 56,
        "vessel_b": 56
    },
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 10,
                "max": 25,
                "detail": "Min distance 308m, avg 312m"
            },
            "duration": {
                "score": 25,
                "max": 25,
                "detail": "Duration 378 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Northern Baltic Sea Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (YANBU and ARDMORE ENTERPRISE) maintained close proximity (min 308m, avg 312m) for 378 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Northern Baltic Sea Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 390,
    "points_in_zone": 57,
    "first_point": {
        "ts": "2026-09-06T13:54:10+00:00",
        "lat": 34.707688300000000936051947064697742462158203125,
        "lon": 33.3205150000000003274180926382541656494140625
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    "last_point": {
        "ts": "2026-09-06T20:24:09+00:00",
        "lat": 34.70781329999999798019416630268096923828125,
        "lon": 33.32049330000000253448888543061912059783935546875
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}

{
    "radius_m": 14,
    "duration_minutes": 390,
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{
    "vessel_a": {
        "mmsi": 538005092,
        "imo": 9654555,
        "name": "ARDMORE ENTERPRISE",
        "flag": "MARSHALL ISLANDS"
    },
    "vessel_b": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
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{
    "vessel_a": {
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            },
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                "max": 25,
                "detail": "Duration 37 minutes"
            },
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                "score": 20,
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                "detail": "both nearly stationary; very stable speeds"
            },
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                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b15m"
            },
            "isolation": {
                "score": 5,
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                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Unknown Maritime Surveillance Zone"
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        "notes": "No Sentinel-1 scenes covering AOI and time window"
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            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (YANBU and SEAGAS MAJOR) maintained close proximity (min 2m, avg 13m) for 39 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.3 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Unknown Maritime Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.717090299999998848079485469497740268707275390625,
            "lon": 35.99933870000000268873918685130774974822998046875
        },
        "time_window": {
            "start_ts": "2026-09-06T01:21:21+00:00",
            "end_ts": "2026-09-06T02:00:41+00:00"
        },
        "searched_at": "2026-09-06T02:30:04.326070+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 566030000,
        "imo": 9431288,
        "name": "MAERSK KAYA",
        "flag": "SINGAPORE"
    },
    "min_distance_m": 1,
    "avg_distance_m": 5,
    "distance_consistency_m": 3.20000000000000017763568394002504646778106689453125,
    "duration_minutes": 37,
    "overlap_duration_s": 2217,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-06T01:21:21+00:00",
        "end": "2026-09-06T01:58:18+00:00"
    },
    "points_count": {
        "vessel_a": 6,
        "vessel_b": 6
    },
    "zone_id": "discovered_134",
    "zone_name": "Unknown Maritime Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 1m, avg 5m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 37 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b13m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Unknown Maritime Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (YANBU and MAERSK KAYA) maintained close proximity (min 1m, avg 5m) for 37 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Unknown Maritime Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.71710970000000173740772879682481288909912109375,
            "lon": 35.9993678000000016936610336415469646453857421875
        },
        "time_window": {
            "start_ts": "2026-09-06T01:21:21+00:00",
            "end_ts": "2026-09-06T01:58:18+00:00"
        },
        "searched_at": "2026-09-06T02:30:09.012064+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636021573,
        "imo": 9945306,
        "name": "ON PASSION",
        "flag": "LIBERIA"
    },
    "min_distance_m": 0.90000000000000002220446049250313080847263336181640625,
    "avg_distance_m": 1.6999999999999999555910790149937383830547332763671875,
    "distance_consistency_m": 1.399999999999999911182158029987476766109466552734375,
    "duration_minutes": 30.89999999999999857891452847979962825775146484375,
    "overlap_duration_s": 1856,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-06T01:21:21+00:00",
        "end": "2026-09-06T01:52:17+00:00"
    },
    "points_count": {
        "vessel_a": 5,
        "vessel_b": 5
    },
    "zone_id": "discovered_134",
    "zone_name": "Unknown Maritime Surveillance Zone",
    "score": {
        "value": 75,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 1m, avg 2m"
            },
            "duration": {
                "score": 5,
                "max": 25,
                "detail": "Duration 31 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b11m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Unknown Maritime Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (YANBU and ON PASSION) maintained close proximity (min 1m, avg 2m) for 31 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Unknown Maritime Surveillance Zone, a known STS activity area."
    },
    "sar": {
        "status": "not_found",
        "centroid": {
            "lat": 31.71709729999999893834683462046086788177490234375,
            "lon": 35.99937200000000103727870737202465534210205078125
        },
        "time_window": {
            "start_ts": "2026-09-06T01:21:21+00:00",
            "end_ts": "2026-09-06T01:52:17+00:00"
        },
        "searched_at": "2026-09-06T02:30:11.527239+00:00",
        "notes": "No Sentinel-1 scenes covering AOI and time window"
    }
}

{
    "vessel_a": {
        "mmsi": 325896057,
        "name": "RINA",
        "flag": "DOMINICA"
    },
    "vessel_b": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "min_distance_m": 0.5,
    "avg_distance_m": 5.0999999999999996447286321199499070644378662109375,
    "distance_consistency_m": 6.4000000000000003552713678800500929355621337890625,
    "duration_minutes": 47.89999999999999857891452847979962825775146484375,
    "overlap_duration_s": 2875,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-06T01:20:52+00:00",
        "end": "2026-09-06T02:08:47+00:00"
    },
    "points_count": {
        "vessel_a": 12,
        "vessel_b": 12
    },
    "zone_id": "discovered_134",
    "zone_name": "Unknown Maritime Surveillance Zone",
    "score": {
        "value": 80,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 0m, avg 5m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 48 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 15,
                "max": 15,
                "detail": "Distance variance \u00b16m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Unknown Maritime Surveillance Zone"
            }
        },
        "summary": "High-confidence STS candidate. Two tankers (RINA and YANBU) maintained close proximity (min 0m, avg 5m) for 48 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Unknown Maritime Surveillance Zone, a known STS activity area."
    }
}

{
    "vessel_a": {
        "mmsi": 636015372,
        "imo": 9611541,
        "name": "THALIA",
        "flag": "Liberia"
    },
    "vessel_b": {
        "mmsi": 636023504,
        "imo": 9376816,
        "name": "YANBU",
        "flag": "Liberia"
    },
    "min_distance_m": 0.8000000000000000444089209850062616169452667236328125,
    "avg_distance_m": 19,
    "distance_consistency_m": 42,
    "duration_minutes": 47,
    "overlap_duration_s": 2821,
    "speed_a_avg": 0,
    "speed_a_std": 0,
    "speed_b_avg": 0,
    "speed_b_std": 0,
    "speed_summary": {
        "vessel_a": {
            "avg_sog": 0,
            "max_sog": 0
        },
        "vessel_b": {
            "avg_sog": 0,
            "max_sog": 0
        }
    },
    "time_window": {
        "start": "2026-09-06T01:19:21+00:00",
        "end": "2026-09-06T02:06:22+00:00"
    },
    "points_count": {
        "vessel_a": 18,
        "vessel_b": 18
    },
    "zone_id": "discovered_134",
    "zone_name": "Unknown Maritime Surveillance Zone",
    "score": {
        "value": 77,
        "components": {
            "distance_tightness": {
                "score": 25,
                "max": 25,
                "detail": "Min distance 1m, avg 19m"
            },
            "duration": {
                "score": 10,
                "max": 25,
                "detail": "Duration 47 minutes"
            },
            "speed_stability": {
                "score": 20,
                "max": 20,
                "detail": "both nearly stationary; very stable speeds"
            },
            "distance_consistency": {
                "score": 12,
                "max": 15,
                "detail": "Distance variance \u00b142m"
            },
            "isolation": {
                "score": 5,
                "max": 10,
                "detail": "Isolation data not available"
            },
            "context": {
                "score": 5,
                "max": 5,
                "detail": "In monitored zone: Unknown Maritime Surveillance Zone"
            }
        },
        "summary": "Moderate-confidence STS candidate. Two tankers (THALIA and YANBU) maintained close proximity (min 1m, avg 19m) for 47 minutes. Both vessels were slow-moving (avg speeds 0.0 and 0.0 knots). The stable separation distance suggests deliberate parallel positioning typical of cargo transfer. Event occurred in Unknown Maritime Surveillance Zone, a known STS activity area."
    }
}

{
    "zone_id": "discovered_039",
    "zone_name": "Northern Baltic Sea Surveillance Zone",
    "dwell_minutes": 70.099999999999994315658113919198513031005859375,
    "points_in_zone": 13,
    "first_point": {
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{
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    "first_point": {
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{
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{
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{
    "radius_m": 188.80000000000001136868377216160297393798828125,
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{
    "zone_id": "discovered_039",
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{
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{
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{
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{
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{
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{
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{
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{
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